Purpose of flooring is to get a good hard, level and beautiful surface for living. The floors directlyresting on the ground are known as ground floors while the floors of each storey are known as upperfloors. Ground FloorApart from giving good finished surface, these floors should have good damp resistance. …

Applying mortar coats on the surfaces of walls, columns, ceiling etc. to get smooth finish is termed as plastering. Mortar used for plastering may be lime mortar, cement mortar or lime-cement mortar. Lime mortar used shall have fat lime to sand ratio of 1 : 3 or 1 : 4. …

August 9, 2016Building MaterialsComments Off on Advantages and Disadvantages of Brick Masonry Over Stone Masonry

Points to be Observed in Supervising Brick Masonry ConstructionsThe following points should be observed in the construction of brick masonry: 1. Use bricks of good quality with uniform colour, well burnt, with exact shape and size.2. Before using the bricks in masonry, they should be soaked in water for 2 …

MIXING Concrete must be mixed so the Cement, Water, Aggregates and Admixtures blend into an even mix. Concrete is normally mixed by MACHINE. Machine mixing can be done on-site or be a Pre-Mixed concrete company. Pre-Mixed concrete is batched (proportioned) at the plant to the job requirements. Truck Mixing The …

A CONCRETE MIX is designed to produce concrete that can be easily placed at the lowest cost.The concrete must be workable and cohesive when plastic, then set and harden to give strong anddurable concrete. The mix design must consider the environment that the concrete will be in; ie exposure to …

Activity float and schedules: A number of different activity schedules can be developed from the critical path scheduling procedure described in the previous section.An earliest time schedule would be developed by starting each activity as soon as possible, at ES(i,j). Similarly, a latest time schedule would delay the start of …

August 9, 2016SoilComments Off on The factors affecting work scheduling

The factors affecting work scheduling:(a) Time:Most of the projects carry time constraints in the form of imposed dates, thesedates may includeconstraints on start and completion of activities.(b) Manpower:Man power is one of the main in the successful execution of projects. The idlelabour time is paidfor and the strikes and breakdown …

August 9, 2016AFDComments Off on Critical path method with neat sketches

The most widely used scheduling technique is the critical path method (CPM) for scheduling, often referred to as critical path scheduling. This method calculates the minimum completion time for a project along with the possible start and finish times for the project activities. Indeed, many texts and managers regard critical …

Scheduling means putting the plan on calendar basis. A project network shows thesequence and inters dependencies of activities, their time and their earliest and latestcompletion time, but these needs to be scheduled to determine commencement andtermination dates of each activity.Using optimum resources or working within resourceconstraints, it is a time …

One objective in many construction planning efforts is to define the plan within the constraints of a universal coding system for identifying activities. Each activity defined for a project would be identified by a pre-defined code specific to that activity. The use of a common nomenclature or identification system is …